Re: [PATCH v4 12/20] mtd: spi-nor: Print debug message when the read back test fails

From: Vignesh Raghavendra
Date: Tue Nov 05 2019 - 07:37:38 EST




On 02/11/19 4:53 PM, Tudor.Ambarus@xxxxxxxxxxxxx wrote:
> From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
>
> Demystify where the EIO error occurs.
>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
> ---

I think this is a small enough change that can be squashed into previous
patch itself

> drivers/mtd/spi-nor/spi-nor.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index 8f5e9833081b..725dab241271 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -974,7 +974,12 @@ static int spi_nor_write_sr_and_check(struct spi_nor *nor, u8 status_new)
> if (ret)
> return ret;
>
> - return (nor->bouncebuf[0] != status_new) ? -EIO : 0;
> + if (nor->bouncebuf[0] != status_new) {
> + dev_dbg(nor->dev, "SR: read back test failed\n");
> + return -EIO;
> + }
> +
> + return 0;
> }
>
> /**
>

--
Regards
Vignesh